Transferring private keys from Bitcoin-qt to Electrum wallet, but amount is wrong?
So basically I started out with Bitcoin-qt years ago, but it's too cumbersome now with me needing the giant blockchain downloaded. Anyway, I decided to try Electrum. I read how to extract my private keys from the bitcoin-qt wallet address, and import them into my newly created Electrum wallet. Bitcoin-qt showed I had 9 receive addresses, and after importing all 9 into Electrum the amount isn't the same. While it's not a gigantic difference, Electrum shows roughly 0.015 BTC less than Bitcoin-qt. When I check all of the address on blockchain.info and add them all up it comes out to what Electrum is showing. Does anybody know why Bitcoin-qt is showing more (which should be correct from all my previous transactions), and how to get the small remaining amount imported into Electrum without just transferring the balance (thus incurring a fee)?
Need to transfer bitcoins from bitaddress.org wallet to my bitcoin-qt address
Hi, I'm new to bitcoin so i hope someone can help me out. I have some bitcoins in in a bitaddress.org wallet and i need to transfer those bitcoins to my wallet on bitcoin-qt,what's the fastest way i can do this?
Why does blockchain.info not agree with my bitcoin-qt wallet that has only one address?
So my issue is that Blockchain shows a different amount than my qt wallet that has only one address in it. I am up to date on all the blocks. However there is one transaction on the blockchain.info website that I never sent from my address and it does not show up in my wallet. https://blockchain.info/tx/8fa52306101c4605aa8689767ad20c0ef35aa71dbd913e08224e1a095b576af1 How is that possible? Also the address the 1btc was sent to is 15GoDKid4X25yLEErS4b6gPQeqfcJVRJLa The address has "GoD Kid" ... coincidence or hacker? How do I know how much I have at this address? Do I look at my personal wallet or the blockchain? and keep in mind I only have one address in my wallet. I want my 1 btc back...lol Edit: Issue was resolved (coins are safe) but it is still unknown why I was not able to retrieve the private key from my most up to date wallet, but was able to get it from a backup.
Wallet Question: With an offline Armory wallet do I really need Bitcoin-QT? Can't I just generate an address on the offline computer and add that address to my Blockchain.info account as a watch only address? From there won't I be able to receive payments and view the balance?
Or am I missing something (like all of my bitcoins)?
Bitcoin Qt wallet safety question: can I have two addresses on the same Bitcoin QT wallet in the same machine? Is It safer to store your bitcoins that way in case one address get hacked?
I just want to split some of my bitcoins in case something goes wrong with my wallet or I get hacked. But I don't trust other computers to hold them so They are all going to be in my computer anyway, and since I can't have a second BitcoinQt wallet installed I thought about just creating a new addresss and sending some bitcoins to the new address. How safer am I if I create another address and transfer some bitcoins to the new address? Obviously The new address would have another password and other backups as well. Thanks.
From a same Bitcoin-QT wallet, is there any relation between a sending address and the several "Bitcoin-QT"receive address ?
I mean, if i'm using Bitcoin-QT and different received address (and avoid using eWallet). Is it possible to guess that those "money move" are from the same person by looking at the sending address ? (By looking at the blockchain it seems that the sending address are completely different from the receive address ... But i'm not totaly sure)
Trying to export my wallet.dat from Bitcoin-Qt, but one of the receiving addresses (and its private key) seems to have disappeared. What to do?
I'm trying to move from Bitcoin-Qt to MultiBit. After upgrading Bitcoin-Qt to 0.8.1 from 0.7.x (supposedly mandatory upgrade/fix because of Bitcoin protocol issues), it always tells me that the block chain is corrupt and I need to rebuild it. Tried a bunch of things, it still does it whenever I start. This easily takes over a day and I want something more lightweight on my laptop anyway, so I switch to MultiBit. Got pretty much all my BTC out of my old wallet, but I still want to import the existing private keys and (if possible) transaction records. As I understand, I need to get the keys from wallet.dat in json format, and import them into MultiBit. Should be easy enough, no? First, I tried taking the output of pywallet and importing it into MultiBit. I choose the file, click the button to import, and it does nothing. (The wallet is several megabytes with lots of txns, so it might not have been prepared to handle that big of a file.) Of course I later learn that I'm supposed to just import the private keys, but pywallet doesn't appear to have an option for that? So I go to Blockchain.info, and (hesitantly) created a wallet there with my wallet.dat. It works, but the balance is short of what it should be. Since then I sent nearly all of my balance via Bitcoin-Qt with no problem, but my balance right now is 0.0004 in Blockchain and ~0.002 in Bitcoin-Qt. I export my private keys to JSON, but when I try importing them to MultiBit, I get error: "There were missing dates. Have to go back to genesis block." It refuses to let me import it at all. Nonetheless, it turns out that my Blockchain wallet is missing one of my receiving addresses (and its corresponding private key). This address is over a year old and has been used numerous times...so it's not unused/new and I would really like to keep control of it. I figure my wallet.dat is corrupted somehow...the Bitcoin/Bitcoin-Qt app itself has always seemed rather flaky for me. (Sometimes it'd spontaneously quit after I sent BTC...doesn't really inspire confidence.) Maybe this is what caused the block chain problems to begin with. But I want to figure out how to recover all the private keys, not just the ones that Blockchain recognizes. Any ideas or suggestions would be greatly appreciated. Thanks.
Dear Famed Reddit Users, I apologise in advance if I waste anybody's time here however I need suggestions on whether I can establish if I received a payment from a mining contract I took out in 2013. Back in July 2013 I bough a Bitcoin mining contract from a website called bitcoinfrenzy.com. I paid $49 for "1 GH/s Bitcoin Mining Power – 1 Year Contract (#1GH001) " This website no longer exists and it may have been a scam as I was quite flush back then so I bought the contract and thought no more of it. After the initial purchase email in July 2013 I heard no more until November 2013. 13 November 2013 - Newsletter email stating: "After a long struggle Mining is started for July to till date customers . The order status for all paid orders will be updated within 48 Hours . And we will update" 16 November 2013 I have an email stating that the order had been processed 22 November 2013 Email stating that payouts have been made from wallet address 1LKpQYvMCyfa5AwD8KrDknhjGfP87xWsVN No further emails after this point. When I check the blockchain for this address I can see coins were sent to multiple addresses on 22 November 2013. I do not know what wallet address I provided to bitcoinfrenzy for receipt of any payout. I did create a wallet on blockchain in May 2013. I have accessed this wallet and there is no transaction history showing. I have an old version of bitcoin-qt on an old hard disk drive which has a wallet.dat file created April 2013. I have been unsuccessful when trying to load this wallet. I have all hard drives/laptops from 2013 and since. Views on: Am I wasting my time here? I s there anything else I can search my hard drives for? How can I access my old wallet.dat (and none of the results I've found while searching have worked). NB if one of the receiving addresses from the payout belongs to me the coins will be unspent, there will be no transactions after 22 November 2013 and there may not be any other transactions prior to this. Thanks for reading
Help recovering from old wallet.dat for an old friend.
Hey all, I've been in the Bitcoin space since early 2012. I have a situation that I would love to get some assistance with, I will explain the situation momentarily. Please do not message me and ask me for the wallet.dat file it's not going to happen. TL;DR I have an old wallet.dat file from late 2012 or early 2013 from a coin I sold to a friend. Tried to recover the coins in 2018 and failed, later found out that someone had access to the computer and could have easily stole them. Would the current Bitcoin Core be able to read an old wallet.dat file, and is there any way to easily view the balance of a 2012 wallet.dat file without having to load the entire blockchain? In the early days of Bitcoin as many of you OG's know, the only option to securely store your coins was to use the default Bitcoin wallet in a wallet.dat file. A friend of mine was really wanted to invest in Bitcoin but didn't know how, so I sold one to him because I didn't want him to get screwed. I installed Bitcoin QT on their home laptop, had him write down the password on a piece of paper and had him put a backup of the wallet.dat file onto a USB. Fast forward to when the price went to $20k plus, he calls me up super excited and said he wanted to sell his coin because he could use the money and I encouraged it because from my prior experience I knew the momentum was unsustainable and I had sold a few coins of my own. Anyway, I go over to his house and we huddle around his computer. He tells me that he upgraded the hard drive in his computer and gave me his old one and I went back to my house to get an external hard drive reader. I came back, booted up his old drive and remembered that we would have to let it sync up in order to get the coins out, and on his internet that wasn't going to happen anytime soon. He gave me the hard drive and I went home and left on Bitcoin QT overnight and in the morning I was shocked to see that there were no transactions on the wallet. Quick note, he had the wallet password in a file on his documents titled "Bitcoin Wallet Password.txt". smh. I started to panic, and I realized how bad this looked on me. I called him and told him that there were no coins on there and asked if he had his USB stick and he told me he had lost it years ago. I frantically looked through all of my old wallet files to find any transaction that could link to his address, to show that his coins were still in there. After a while I realized I had sent the coins from the now defunct btc-e.com, and had no way to check up on the coins. I did everything in my ability to try to recover lost data from the hard drive to no avail. I asked him if anyone else has had access to his computer, and then asked him how he replaced his hard drive because I know him well enough to know he wouldn't pull apart a laptop to replace the hard drive. He told me he took it to a shop to have it replaced a few months earlier. I suspect that I'm either trying to view the wallet incorrectly or whoever replaced his hard drive snooped on his hard drive, stole the coins and replaced the wallet.dat file and generated a new one. I have to admit, I was relieved a little bit to have an explanation to coins not being there but I could imagine he thinks I may have had something to do with it. I made a few more attempts over the years whenever I was reminded of the situation to no avail. We kind of fell out after that and haven't spoken in a while. Recently, I saw a post on his Facebook that his wife is pregnant they are having a baby, and that's why I'm here. I would love nothing more than to be able to message him and let him know that I have 11 grand waiting for him, because I'm certain the money would mean the world to him during such a stressful time. Any help or insights would be incredibly helpful and appreciated.
https://github.com/gridcoin-community/Gridcoin-Research/releases/tag/22.214.171.124 Finally! After over ten months of development and testing, "Fern" has arrived! This is a whopper. 240 pull requests merged. Essentially a complete rewrite that was started with the scraper (the "neural net" rewrite) in "Denise" has now been completed. Practically the ENTIRE Gridcoin specific codebase resting on top of the vanilla Bitcoin/Peercoin/Blackcoin vanilla PoS code has been rewritten. This removes the team requirement at last (see below), although there are many other important improvements besides that. Fern was a monumental undertaking. We had to encode all of the old rules active for the v10 block protocol in new code and ensure that the new code was 100% compatible. This had to be done in such a way as to clear out all of the old spaghetti and ring-fence it with tightly controlled class implementations. We then wrote an entirely new, simplified ruleset for research rewards and reengineered contracts (which includes beacon management, polls, and voting) using properly classed code. The fundamentals of Gridcoin with this release are now on a very sound and maintainable footing, and the developers believe the codebase as updated here will serve as the fundamental basis for Gridcoin's future roadmap. We have been testing this for MONTHS on testnet in various stages. The v10 (legacy) compatibility code has been running on testnet continuously as it was developed to ensure compatibility with existing nodes. During the last few months, we have done two private testnet forks and then the full public testnet testing for v11 code (the new protocol which is what Fern implements). The developers have also been running non-staking "sentinel" nodes on mainnet with this code to verify that the consensus rules are problem-free for the legacy compatibility code on the broader mainnet. We believe this amount of testing is going to result in a smooth rollout. Given the amount of changes in Fern, I am presenting TWO changelogs below. One is high level, which summarizes the most significant changes in the protocol. The second changelog is the detailed one in the usual format, and gives you an inkling of the size of this release.
Note that the protocol changes will not become active until we cross the hard-fork transition height to v11, which has been set at 2053000. Given current average block spacing, this should happen around October 4, about one month from now. Note that to get all of the beacons in the network on the new protocol, we are requiring ALL beacons to be validated. A two week (14 day) grace period is provided by the code, starting at the time of the transition height, for people currently holding a beacon to validate the beacon and prevent it from expiring. That means that EVERY CRUNCHER must advertise and validate their beacon AFTER the v11 transition (around Oct 4th) and BEFORE October 18th (or more precisely, 14 days from the actual date of the v11 transition). If you do not advertise and validate your beacon by this time, your beacon will expire and you will stop earning research rewards until you advertise and validate a new beacon. This process has been made much easier by a brand new beacon "wizard" that helps manage beacon advertisements and renewals. Once a beacon has been validated and is a v11 protocol beacon, the normal 180 day expiration rules apply. Note, however, that the 180 day expiration on research rewards has been removed with the Fern update. This means that while your beacon might expire after 180 days, your earned research rewards will be retained and can be claimed by advertising a beacon with the same CPID and going through the validation process again. In other words, you do not lose any earned research rewards if you do not stake a block within 180 days and keep your beacon up-to-date. The transition height is also when the team requirement will be relaxed for the network.
Besides the beacon wizard, there are a number of improvements to the GUI, including new UI transaction types (and icons) for staking the superblock, sidestake sends, beacon advertisement, voting, poll creation, and transactions with a message. The main screen has been revamped with a better summary section, and better status icons. Several changes under the hood have improved GUI performance. And finally, the diagnostics have been revamped.
The wallet sync speed has been DRASTICALLY improved. A decent machine with a good network connection should be able to sync the entire mainnet blockchain in less than 4 hours. A fast machine with a really fast network connection and a good SSD can do it in about 2.5 hours. One of our goals was to reduce or eliminate the reliance on snapshots for mainnet, and I think we have accomplished that goal with the new sync speed. We have also streamlined the in-memory structures for the blockchain which shaves some memory use. There are so many goodies here it is hard to summarize them all. I would like to thank all of the contributors to this release, but especially thank @cyrossignol, whose incredible contributions formed the backbone of this release. I would also like to pay special thanks to @barton2526, @caraka, and @Quezacoatl1, who tirelessly helped during the testing and polishing phase on testnet with testing and repeated builds for all architectures. The developers are proud to present this release to the community and we believe this represents the starting point for a true renaissance for Gridcoin!
Most significantly, nodes calculate research rewards directly from the magnitudes in EACH superblock between stakes instead of using a two- or three- point average based on a CPID's current magnitude and the magnitude for the CPID when it last staked. For those long-timers in the community, this has been referred to as "Superblock Windows," and was first done in proof-of-concept form by @denravonska.
Network magnitude unit pinned to a static value of 0.25
Max research reward allowed per block raised to 16384 GRC (from 12750 GRC)
New CPIDs begin accruing research rewards from the first superblock that contains the CPID instead of from the time of the beacon advertisement
500 GRC research reward limit for a CPID's first stake
6-month expiration for unclaimed rewards
10-block spacing requirement between research reward claims
Rolling 5-day payment-per-day limit
Legacy tolerances for floating-point error and time drift
The need to include a valid copy of a CPID's magnitude in a claim
10-block emission adjustment interval for the magnitude unit
One-time beacon activation requires that participants temporarily change their usernames to a verification code at one whitelisted BOINC project
Verification codes of pending beacons expire after 3 days
Self-service beacon removal
Burn fee for beacon advertisement increased from 0.00001 GRC to 0.5 GRC
Rain addresses derived from beacon keys instead of a default wallet address
Beacon expiration determined as of the current block instead of the previous block
The ability for developers to remove beacons
The ability to sign research reward claims with non-current but unexpired beacons
As a reminder:
Beacons expire after 6 months pass (180 days)
Beacons can be renewed after 5 months pass (150 days)
Renewed beacons must be signed with the same key as the original beacon
Magnitudes less than 1 include two fractional places
Magnitudes greater than or equal to 1 but less than 10 include one fractional place
A valid superblock must match a scraper convergence
Superblock popularity election mechanics
Yes/no/abstain and single-choice response types (no user-facing support yet)
To create a poll, a maximum of 250 UTXOs for a single address must add up to 100000 GRC. These are selected from the largest downwards.
Burn fee for creating polls scaled by the number of UTXOs claimed
50 GRC for a poll contract
0.001 GRC per claimed UTXO
Burn fee for casting votes scaled by the number of UTXOs claimed
0.01 GRC for a vote contract
0.01 GRC to claim magnitude
0.01 GRC per claimed address
0.001 GRC per claimed UTXO
Maximum length of a poll title: 80 characters
Maximum length of a poll question: 100 characters
Maximum length of a poll discussion website URL: 100 characters
Maximum number of poll choices: 20
Maximum length of a poll choice label: 100 characters
Magnitude, CPID count, and participant count poll weight types
The ability for developers to remove polls and votes
[126.96.36.199] 2020-09-03, mandatory, "Fern"
Backport newer uint256 types from Bitcoin #1570 (@cyrossignol)
Implement project level rain for rainbymagnitude #1580 (@jamescowens)
Upgrade utilities (Update checker and snapshot downloadeapplication) #1576 (@iFoggz)
Provide fees collected in the block by the miner #1601 (@iFoggz)
Add support for generating legacy superblocks from scraper stats #1603 (@cyrossignol)
Port of the Bitcoin Logger to Gridcoin #1600 (@jamescowens)
Implement zapwallettxes #1605 (@jamescowens)
Implements a global event filter to suppress help question mark #1609 (@jamescowens)
Add next target difficulty to RPC output #1615 (@cyrossignol)
Add caching for block hashes to CBlock #1624 (@cyrossignol)
Make toolbars and tray icon red for testnet #1637 (@jamescowens)
Add an rpc call convergencereport #1643 (@jamescowens)
Implement newline filter on config file read in #1645 (@jamescowens)
Implement beacon status icon/button #1646 (@jamescowens)
Add gridcointestnet.png #1649 (@caraka)
Add precision to support magnitudes less than 1 #1651 (@cyrossignol)
Replace research accrual calculations with superblock snapshots #1657 (@cyrossignol)
Publish example gridcoinresearch.conf as a md document to the doc directory #1662 (@jamescowens)
Add options checkbox to disable transaction notifications #1666 (@jamescowens)
Add support for self-service beacon deletion #1695 (@cyrossignol)
Add support for type-specific contract fee amounts #1698 (@cyrossignol)
Add verifiedbeaconreport and pendingbeaconreport #1696 (@jamescowens)
Add preliminary testing option for block v11 height on testnet #1706 (@cyrossignol)
Add verified beacons manifest part to superblock validator #1711 (@cyrossignol)
Implement beacon, vote, and superblock display categories/icons in UI transaction model #1717 (@jamescowens)
Two-factor authentication (2FA) is a way to add additional security to your wallet. The first 'factor' is your password for your wallet. The second 'factor' is a verification code retrieved via text message or from an app on a mobile device. 2FA is conceptually similar to a security token device that banks in some countries require for online banking. Die Bitcoin Wallet lässt sich mit einer echten Geldbörse vergleichen. Sie legen sich eine oder mehrere Geldbörsen zu, um in diesen Ihr Geld zu verstauen. Möchten Sie Geld ausgeben, zum Beispiel beim Kauf einer Ware, entnehmen Sie das Geld aus Ihrer Börse und reichen es weiter. So ist auch das Grundprinzip bei der Bitcoin Wallet. Bitcoin ist eine digitale Währung. Es gibt keinen ... Eine Bitcoinadresse oder einfach Adresse ist eine Kette von 27-34 alphanumerischen Zeichen, die mit einer 1 oder 3 beginnen und ein Ziel für eine Bitcoinzalung eindeutig identifizieren. Adressen können von jedem Nutzer beliebig und kostenlos erzeugt werden. Zum Beispiel kann in dem original Bitcoin-Client Bitcoin-Qt im Bereich Bitcoins Empfangen einfach auf Neue Adresse geklickt werden um ... My Bitcoin-Qt client is still synchronizing with the network. I'm unsure of how to use my Bitcoin-Qt wallet address on Blockchain.info. I've put my address on Blockchain.info as (watch only), but h... So findet man seine Bitcoin Adresse Dieses Problem dürfte so ziemlich jeder Nutzer von Bitcoin kennen: man hat sein persönliches Bitcoin Wallet eingerichtet und möchte sogleich mit den ersten Transaktionen loslegen. Man wird dann aber sogleich zunächst vor die große Frage gestellt, wo denn eigentlich die eigene Bitcoin Adresse verborgen ist. Die Antwort ist aber…
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